plgd-dev/hub

CPU usage spikes hourly in idle system with over 2000 devices (resource-aggregator)

rlopinfn opened this issue · 2 comments

rlopinfn commented

Description

When running plgd with 2800 onboarded devices, we noticed CPU usage spikes occurring hourly while system is in idle state.

How can it be reproduced?

  1. Have system running with 2800 devices onboarded.
  2. Monitor plgd host machine CPU usage.

resource-aggr_spikes

Environment

  • plgd-dev/hub/bundle:2.12.1
  • Deployment option: ( helm )
jkralik commented

Hi @rlopinfn.
Could you please provide the configuration?
What is configured for the environment variable MOCK_OAUTH_SERVER_ACCESS_TOKEN_LIFETIME? If it is set to 1 hour, then this behavior is expected because devices refresh their tokens.